OZG-4994 OZG-5061 change ungelesene Nachrichten query

alfa-service/src/main/java/de/ozgcloud/alfa/statistic/StatisticRemoteService.java

@@ -102,7 +102,8 @@ class StatisticRemoteService {
 				.setResultName(COUNT_VORGAENGE_WITH_UNGELESENE_NACHRICHTEN_RESULT_NAME)
 				.setPath(VORGAENGE_WITH_UNGELESENE_NACHRICHTEN_PATH)
 				.setGroupMethod(GroupMethod.COUNT)
-				.setOperator(Operator.UNEQUAL)
+				.setOperator(Operator.EQUAL)
+				.setOperandBoolValue(true)
 				.build();
 	}
 }
\ No newline at end of file

alfa-service/src/test/java/de/ozgcloud/alfa/statistic/StatisticRemoteServiceTest.java

@@ -325,7 +325,14 @@ class StatisticRemoteServiceTest {
 		void shouldHaveOperator() {
 			var query = callService();
 
-			assertThat(query.getOperator()).isEqualTo(Operator.UNEQUAL);
+			assertThat(query.getOperator()).isEqualTo(Operator.EQUAL);
+		}
+
+		@Test
+		void shouldHaveOperandValue() {
+			var query = callService();
+
+			assertThat(query.getOperandBoolValue()).isTrue();
 		}
 
 		private GrpcVorgangStatisticQuery callService() {